<html xmlns="http://www.w3.org/1999/xhtml">
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=507487
-->
<head>
  <style>
    #content > * {
    display:block; width:100px; height:100px; background: purple;
    }
    #content > teST {
    display:block; width:100px; height:100px; background: green;
    }
    
    #content > test {
    display:block; width:100px; height:100px; background: blue;
    }
  </style>
  <script type="application/javascript">
  <![CDATA[
  function f() {
    document.getElementById('content').appendChild(document.createElementNS("test", "test"));
    document.getElementById('content').appendChild(document.createElementNS("test", "teST"));
    document.getElementById('content').appendChild(document.createElementNS("http://www.w3.org/1999/xhtml", "test"));
    document.getElementById('content').appendChild(document.createElementNS("http://www.w3.org/1999/xhtml", "teST"));
  }
  ]]>
  </script>
</head>
<body onload="f();">
<div id="content"></div>
</body>
</html>
